. SCIENTIFIC INQUIRY You discover a new egg-laying wormspecies. You dissect four adults and find both oocytesand sperm in each. Cells outside the gonad contain fivechromosome pairs. Lacking genetic variants, explain howyou would determine whether the worms can self-fertilize.

Q: Fill in the blank:  _________________ is the phase of development during which cellular divisions…

A: The multicellular organisms develop from an early stage called an embryo. Embryonic development…

Q: Fertilization is the first step in sexually reproducing species. A cortical reaction failure that…

A: Fertilization is the process of fusion of nuclei of two haploid reproductive cells, sperm (n) and…

Q: Female bees are diploid, and male bees are haploid. The haploid males produce sperm and can…

A: Ploidy refers to the number of chromosomes present in the nucleus of a cell. In normal somatic…

Q: A preembryo has:- a. A neural tube. b. A heart bulge. c. A cytotrophoblast. d. A coelom. e. decidual…

A: Cell denotes the primary structural and functional unit of all living organisms. Scientists…

Q: 1. Summarize the events that occur from the fertilization to the development of an embryo. In plants…

A: Note: Please upload 2nd question separately.  Answer: Introduction: Fertilization is mixture of…

Q: During Sexual Reproduction what occurs when a sperm cell enters an egg cell

A: Reproduction is the biological phenomenon by which offspring are produced by individual organisms.…

Q: Which of the following cell layers is not necessary to be considered a eumetazoan? a. Ectoderm…

A: Eumetazoans are the animals which are characterized by the presence of true tissues organized into…

Q: The photo on the left shows an early frog embryo after three mitotic divisions of a fertilized egg.…

A: Introduction: Once the female frog has laid its egg, the male frog releases its sperm in the water…

Q: In your own words: If cell division during gametogenesis were non-meiotic, what would be its…

A: The formation of gametes occurs by the process termed as gametogenesis. Different cell divisions…

Q: In human oogenesis how many chromatids does a primary oocyte carry?  22/23/44/46 or 92

A: Gametogenesis is the process of synthesis of gametes .  It is divided into :- A ) Female…

Q: Why does a mouse embryo develop faster than a human embryo, for example?

A: The similarities between humans and mice permit the study of the development of humans and their…

Q: Which of the following cells canundergo meiosis?a. the diploid body cells of an animalb. haploid…

A: Meiosis is a type of cell division that is a reduction division. In this division, the chromosome…

Q: Which of the following is a reason for mitotic cell division?a. asexual reproductionb. gamete…

A: The cell is the basic structural and functional unit of the body. The cell carries out many…

Q: in your own opinion, how does animals and plants reproduce asexually? (5-7sentences. with…

A:

Q: SOME EVENTS IN THE PROCESS OF FERTILIZATION 1. A single sperm nucleus and an egg nucleus fuse to…

A: Fertilization is the process of combining two haploid cells, the egg and the sperm, to produce a…

Q: 2. Organs develop from a zygote as a direct result of the processes of 1) fertilization and meiosis…

A: Ans: Zygote: The egg cells are fertilized by sperm cells to form the zygote and is also referred to…

Q: Human Reproductive System has a lot of surprising facts that maybe you haven't heard about; one of…

A: The human reproductive system is the vital system that is responsible for the formation of new…

Q: removing a sperm nucleus and injecting it into the egg, could this procedure ever produce viable…

A: Yes, it may fuse with the egg because due to non motility sperm can not able to reach to the…

Q: Which human cell is haploid? O A mature neuron in the brain O A mature muscle cell in the heart A…

A: The term ploidy is associated with the number of chromosomes sets that can be found in a particular…

Q: Select all the statements that are true for meiosis starts with 2 diploid cells ends with 4 haploid…

A: Meiosis is a process where a single cell divides twice to produce four cells. Each containing half…

Q: Fill in the blank:  A human offspring is called a(an) ___________________ until the end of the…

A: The development of human offspring takes around nine months. The development involves four stages.…

Q: How do you expect Kartagener syndrome leads to infertility?   A. The lack of a plasma membrane means…

A: Primary ciliary dyskinesia(PCD) is a rare autosomal Recessive genetic disorder. PCD is a genetically…

Q: Which of the following statements BEST describes this process. O Daughter cells divide twice to form…

A: Gametes are defined as the haploid (n) reproductive cells formed in sexually reproducing individuals…

Q: During the creation of eggs, only one egg will be viable, the other 3 eventually break down. What…

A: Oogenesis is divided into three stages, which are the Multiplication phase, growth phase, and…

Q: which germ layer (tissue) gives rice to our nervous system and outer coverings. a) endotherm b)…

A: The mesoderm, or middle tissue, gives rise to most of the muscle and connective tissues. Finally the…

Q: A sperm encounters an egg's jelly coat thus triggering the acrosomal reaction. What is the first…

A: Egg cells are the largest of all the cells in our body and are about 100 microns in diameter. It is…

Q: Induced pluripotent stem cells are transforming medical research because they have the potential to…

A: Pluripotent stem cells are capable of producing all of the body's cells.

Q: A A Mesoderm Ectoderm Endoderm In the above diagram, there is an opening that has appeared on the…

A: Developmental biology is the study of the process by which organisms grow and develop.

Q: Most mammals, including humans have alecithal type of egg, which means that there is negligible or…

A: In lower organisms the yolk provides the nourishment to the growing embryo. But in mammals the…

Q: What is NOT a disadvantage of internal fertilization? O the ability to reproduce on land without…

A: Step 1 Internal fertilization is syngamy or fertilization that occurs inside the body of the…

Q: The diagram below represents one stage during the human reproductive process. Fetus A- A function of…

A: Implantation is the process by which the blastocyst or fertilized egg attaches to the uterine wall.…

Q: What would happen if stem cells divided like spermatogonia? O There is a huge stock of stem cells in…

A: Spermatogenesis is the formation of the sperm from 2n cells to n cells. According to me the option…

Q: In human life did how many chromatids does a secondary oocyte carry?  22/23/44/46 or 92

A: The secondary Oocyte has 23 chromosomes.

Q: Why are the chromosomes replicating? Why is this necessary for the embryo? (Hint: think about…

A: The process in which the nucleus divides is called mitosis. DNA replication is an essential part of…

Q: a. development of organs

A: 1. Development of organs

Q: (a) Starting with a fertilized egg (zygote), a series of five cell divisions would produce an early…

A: We are answering the first question only. For the rest of the questions please repost. A zygote can…

Q: How would you explain the similarities among bird, mammal, and reptile embryos at the early stages…

A: Embryos for bird, mammal & repltile look alike at early developmental stages because they share…

Q: How can one cell give rise to different types of cells

A: * As we seen our life begins with a single cell and it will leads to formation of organs and tissues…

Q: Meiosis_______ . a. occurs only in animals b. supports growth and tissue repair in multicelled…

A: Meiosis is a cell division that forms four progeny cells from a single parent cell.

Q: On the diagram below represents events that occur during embryonic development in human. Letters…

A: Mitosis is an educational division. It leads to produce identical daughter cell from parent cell.…

Q: Fill in the blank: The embryonic stage is completed by the end of the ___________________ week of…

A: Introduction: The embryonic stage is the period of human development in the uterus of mother. It is…

Q: the body cells of males and of females? 4, In some insects, the females have two X chro diploid…

A: Sex chromosomes carry the genes that determine the sex of an organism.

Q: Meiosis Allows fish to control their buoyancy OIs a cell division that produces a diploid cell

A: The type of cell division known as meiosis produces four haploid daughter cells from a single…

Q: observe that your drug-treated embryo is than an untreated control fertilized at the same time

A: Mitosis is a type of cell division which take place in body cells. Mitosis is a way of making more…

Q: Fill in the blank:  The anterior end of a sperm head, called the _______________________, contains…

A: There are two types of sex cells, namely sperm (male gamete) and egg (female gamete). The male…

Q: A: Why do sea urchins have external fertilization? [Discuss the life style of the developing sea…

A: Introduction: We’ll answer the first question since the exact one wasn’t specified. Please submit a…

Q: You have ah Each cell may continue development, but only into a nor Each cell may develop into a…

A: Morula (Latin, morus: mulberry) is the first-class embryo composed of 16 cells (called blastomeres)…